Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
MGIC
3226
PUT
DELISTED
Magic Software Enterprises
MGIC
| $614K | ﹤0.01% |
39,500
+600
| +2% | +$10.7K |
|
|
NS
3227
CALL
DELISTED
NuStar Energy L.P.
NS
| $614K | ﹤0.01% |
45,500
+22,800
| +100% | +$343K |
|
3228
Magna International
MGA
$18.8B
| $613K | ﹤0.01% |
+12,944
| New | +$753K |
|
3229
ICICI Bank
IBN
$109B
| $612K | ﹤0.01% |
29,216
-38,760
| -57% | -$819K |
|
3230
PUT
Pebblebrook Hotel Trust
PEB
$2.2B
| $612K | ﹤0.01% |
42,200
+30,200
| +252% | +$543K |
|
3231
CALL
Vertiv
VRT
$104B
| $611K | ﹤0.01% |
62,900
-19,100
| -23% | -$215K |
|
3232
PUT
Assurant
AIZ
$14B
| $610K | ﹤0.01% |
4,200
+4,100
| +4,100% | +$669K |
|
3233
CALL
Healthcare Realty
HR
$7.58B
| $610K | ﹤0.01% |
29,300
+23,200
| +380% | +$590K |
|
3234
CALL
McEwen Inc
MUX
$1.03B
| $610K | ﹤0.01% |
187,200
+168,490
| +901% | +$581K |
|
3235
PUT
Viasat
VSAT
$10.2B
| $610K | ﹤0.01% |
20,200
+6,400
| +46% | +$214K |
|
3236
Alta Equipment Group
ALTG
$207M
| $609K | ﹤0.01% |
55,332
+3,172
| +6% | +$36.5K |
|
3237
PUT
Equinor
EQNR
$90.9B
| $609K | ﹤0.01% |
18,400
-41,500
| -69% | -$1.5M |
|
3238
Sylvamo
SLVM
$1.55B
| $609K | ﹤0.01% |
17,979
+15,691
| +686% | +$596K |
|
3239
PUT
Vroom Inc
VRM
$36.8M
| $609K | ﹤0.01% |
6,566
+1,546
| +31% | +$206K |
|
3240
PUT
Invesco Equal Weight 0-30 Year Treasury ETF
GOVI
$1.23B
| $608K | ﹤0.01% |
15,400
-5,300
| -26% | -$164K |
|
3241
CALL
Rocket Pharmaceuticals
RCKT
$343M
| $608K | ﹤0.01% |
38,100
+31,600
| +486% | +$493K |
|
3242
CALL
Apple Hospitality REIT
APLE
$3.97B
| $607K | ﹤0.01% |
43,200
+4,400
| +11% | +$69.8K |
|
3243
CALL
First Commonwealth Financial
FCF
$2.17B
| $607K | ﹤0.01% |
+47,300
| New | +$663K |
|
|
TUP
3244
CALL
DELISTED
Tupperware Brands Corporation
TUP
| $607K | ﹤0.01% |
92,800
+57,500
| +163% | +$517K |
|
|
BHIL
3245
CALL
DELISTED
Benson Hill, Inc.
BHIL
| $607K | ﹤0.01% |
6,334
+37
| +0.6% | +$4.07K |
|
|
TGR
3246
CALL
DELISTED
ISHARES TARGET DATE RETIREMENT INCOME ETF
TGR
| $607K | ﹤0.01% |
43,700
+36,600
| +515% | +$508K |
|
3247
PUT
Rhythm Pharmaceuticals
RYTM
$7.41B
| $605K | ﹤0.01% |
24,700
-2,000
| -7% | -$37.2K |
|
|
GOGL
3248
PUT
DELISTED
Golden Ocean Group
GOGL
| $604K | ﹤0.01% |
80,900
-18,800
| -19% | -$188K |
|
3249
CALL
MidCap Financial Investment
MFIC
$811M
| $604K | ﹤0.01% |
59,100
-46,700
| -44% | -$569K |
|
3250
PUT
Perion Network
PERI
$378M
| $603K | ﹤0.01% |
31,300
-23,300
| -43% | -$470K |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.